Abstract
Complete characterizations are given for those trees that can be drawn as either the relative neighborhood graph, relatively closest graph, Gabriel graph, or modified Gabriel graph of a set of points in the plane. The characterizations give rise to linear-time algorithms for determining whether a tree has such a drawing; if such a drawing exists one can be constructed in linear time in the real RAM model. The characterization of Gabriel graphs settles several conjectures of Matula and Sokal [17].
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Communicated by G. Di Battista and R. Tamassia.
This research was conducted while the author was at the School of Computer Science of McGill University. Research supported in part by NSERC and FCAR.
This work was done when this author was visiting the School of Computer Science of McGill University.
This work was done when this author was visiting the School of Computer Science of McGill University.
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Bose, P., Lenhart, W. & Liotta, G. Characterizing proximity trees. Algorithmica 16, 83–110 (1996). https://doi.org/10.1007/BF02086609
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DOI: https://doi.org/10.1007/BF02086609